James m



(No Model.)

J M. SINOLAIR.

FIRR PROOF RLUR STRUCTURE.

No. 345,000. Patented July 6, 1886.

lll lllllllllllllllllllllllllllllll :W1 n 1 1 c. |11

r ||I|||||||v N. PETERS, PM10-Langsam, wmngmn. n.0.

NITED STATES PATENT OFFICE.

JAMES M. SINOLAIR, OF NEW YORK, N. Y.

FIRE-PROOF-,FLUE ST'RUCTU SPECIFICATION forming part of Letters Patent No.345,000,d21ted July 6. 1886- Application filed January 28, 1886. Serial No. 190,139. (No modeLl To aZZ whom it may concern.-

B'e it known that I, JAMEs M. SINOLAIR, of

I the city and count-y of New York, in the State of New York, have invented a new and useful Improvement in Fire Proof lVIultiple-Flue Structures of which the following is a speciication.

Myinvention,although applicable generally to lues which are built into the walls and partitions of buildings, is more particularly intended for hot-air lues for heating purposes. As usually constructed,hotair ues are formed of tin or sheet metal; and although a number of flues may be built into one wall and near together side by side, each ilue is usually entirely separate and constructed separately from all the others, and such lues are therefore expensive. Moreover, the fire regulations in most cities prohibit the arrangement of such :dues in lath-and-plaster partitions, and require that they 'be built into brick walls because of the liability of the metal becoming overheated and setting fire to the surrounding wood-Work.

The object of my invention is to provide multiple-flue sections, which are to be superposed one on another, and each of which co1nprises a number of flue-passages or i'lues proper, all combined in one integral structure.

In what I now consider the most approved form, the-compound or composite iluesections each consist of a number of sheet-metal tubes or linings, which are embedded in a composition casing or shell, which may be composed of wood pulp and plaster-ofparis, the tubes or linings being separated from each other and collectively surrounded by such composition. I also prefer to form the tubes or linings of each section with a portion of reduced size projecting beyond the composition at one end of the section, so that the tubes or linings of each section shall at one end enter the tubes or linings of the next section on one side thereof, and at the other end shall receive the projecting portions of the tubes or linings of the adjacent section on the other side thereof. The male and female joints thus formed between the sections hold them securely together.

In the accompanying drawings, Figure l is a sectional elevation of two sections of my improved compound or composite flue structure, and Fig. 2 is a plan of one of such sections.

Similar letters of reference designate corresponding parts in both figures.

A designates the individual flues, five of which I have here shown as combined or formed in one iue structure; but it will be obvious that the structure may be made with any number of lues greater or less than ve. The liuc-sections each consist ol' a shell or casing, B, of composition,which is preferably of a more orless ire-proof character, and linings or tubes O, forming the individual flues, and which may be made of sheet-tin or other suitable metal or material. The composition of which the shell or casing B is composed may be composed of wood pulp and plasterof-paris, the pulp being employed to give the structure lightness,and the plaster being used for its hre-proof qualities. The linings or tubes C are embedded in the composition shell or casing B, preferably in the process of manufacture.

To form the sections I may employ a mold box or {iask of proper shape, and within this the linings or tubes C are set in their proper positions, and the composition is then poured in around and between them to form the shell or casing,and then allowed to dry. When the section isre'moved from the mold, the linings 0r tubes O will be embedded in the composition which is between and around them, and will, with the casing o r shell B, form one structure.

I have shown the linings or tubes C as projecting slightly beyond the shell or casing B at one end of the section, and reduced in size, as shown at o, so that when the sections are superposed one on another the linings or tubes O of each section will atv one end enter the linings or tubes of the next adjacent section above, and at their other end receive the linings or tubes of the next section below. The male and female joints thus formed between the sections hold them securely together, and preserve the continuity of the flues in case of the building settling; and, if desired, a small quantity of the composition may be applied in these j oints,to make them as tight as possible. If desirable, double pointed tacks or staples a, as shown in Fig. 1, or other fastening devices, may be employed to connect the sections.

The flue structure above described has man y advantages over` the separate lues ordinarily used and composed solely of metal. It may be built into lath-and-plaster partitions without danger of firing the wood-work, and a number of fines of a given size will occupy much less room in a wall than will an equal number of fines separated from each other by the width of a brick.

The ire-proof composition may be light, and adds but very little to the cost of the individual metal flues, and thecost of molding the shell or casing B is not'increased by the insertion of the linings or tubes C therein, as the linings or tubes take the place of the wood or other cores, which would be otherwise necessary.

I am aware that it is not new to provide tubular sections of ireclay which are arranged end to end and built into a wall, so as to form a single flue. I do not desire to include in myinvention such a Hue or a number of such separate fines built into a wall side by side.

What I claim as my invention, and desire to secure by Letteis Patent, is-

1. The multiple-fine structure herein de scribed, composed of molded sections to be superposed one on another, and each section comprising a number of individual fines cX- tending side by side and formed in one integral structure, the transverse partitions in said structure, each forming the side wall of two adjacent fines, substantially as herein set forth.

2. The multiple ue structure herein described, composed of sections to be superposed one on another, and each section consisting of a number of metal linings or tubes embedded in a shell or casing of composition,which surrounds the linings or tubes collectively and. forms transverse partitions between them,the whole forming one integral structure, substantially as herein described.

3. The multip1e-ilue structure herein described, composed of sections to be snperposed one on another, and each consisting of a number of metal linings or tubes, and a shell or casi ng of molded composition, which surrounds the linings or tubes collectively and iorms transverse partitions between them, said linings or tubes having portions of slightly-reduced size extending beyond the section at one end, to enter the linings or tubes of the adjacent section, substantially as herein de scribed.

Y JAMES M. SINOLAIR. -Witnessesz l FREDK. HAYNEs,

HENRY MCBRIDE. 

